Multiscale modelling of cage effects on the transport of effluents from open aquaculture systems
Most Atlantic salmon mariculture operations use open sea cages for the grow out phase. The ultimate fate and effects of the effluents and the possibilities of disease transfer between fish farms are major concerns for farmers, governance and the general public alike. Numerical model systems applied...
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ftsintef:oai:sintef.brage.unit.no:11250/2652800 2023-05-15T15:32:28+02:00 Multiscale modelling of cage effects on the transport of effluents from open aquaculture systems Broch, Ole Jacob Pascal, Klebert Michelsen, Finn Are Alver, Morten 2020-03-23 application/pdf https://hdl.handle.net/11250/2652800 https://doi.org/10.1371/journal.pone.0228502 eng eng PLOS ONE SINTEF Ocean: RACE urn:issn:1932-6203 https://hdl.handle.net/11250/2652800 https://doi.org/10.1371/journal.pone.0228502 cristin:1806501 Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no © 2020 Broch et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. CC-BY 15 PLOS ONE 3 Journal article Peer reviewed 2020 ftsintef https://doi.org/10.1371/journal.pone.0228502 2021-08-04T12:00:42Z Most Atlantic salmon mariculture operations use open sea cages for the grow out phase. The ultimate fate and effects of the effluents and the possibilities of disease transfer between fish farms are major concerns for farmers, governance and the general public alike. Numerical model systems applied to studying and managing effluents and disease transfer in mariculture must realistically resolve the hydrodynamics in the vicinity of the fish farms. In the present study, the effects of the aquaculture structures on the current patterns were introduced in the ocean model system SINMOD. The drag parameters for the ocean model were determined by comparing the simulation results from the ANSYS Fluent ® software suite and SINMOD in an idealized channel setting with uniform currents. The model was run for a number of realistic scenarios in high horizontal resolution (∼30 m) with sea cages influencing the flow field. Comparisons between extensive current measurements and the simulation results showed that the model system reproduced the current local current field well. By running simulation scenarios with and without the effects of the sea cages on the flow field, it was possible to assess the importance of such effects for numerical dispersal models and aquaculture environment interactions simulations and hence for assessment of environmental impacts. publishedVersion Article in Journal/Newspaper Atlantic salmon SINTEF Open (Brage) PLOS ONE 15 3 e0228502 |
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Open Polar |
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SINTEF Open (Brage) |
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language |
English |
description |
Most Atlantic salmon mariculture operations use open sea cages for the grow out phase. The ultimate fate and effects of the effluents and the possibilities of disease transfer between fish farms are major concerns for farmers, governance and the general public alike. Numerical model systems applied to studying and managing effluents and disease transfer in mariculture must realistically resolve the hydrodynamics in the vicinity of the fish farms. In the present study, the effects of the aquaculture structures on the current patterns were introduced in the ocean model system SINMOD. The drag parameters for the ocean model were determined by comparing the simulation results from the ANSYS Fluent ® software suite and SINMOD in an idealized channel setting with uniform currents. The model was run for a number of realistic scenarios in high horizontal resolution (∼30 m) with sea cages influencing the flow field. Comparisons between extensive current measurements and the simulation results showed that the model system reproduced the current local current field well. By running simulation scenarios with and without the effects of the sea cages on the flow field, it was possible to assess the importance of such effects for numerical dispersal models and aquaculture environment interactions simulations and hence for assessment of environmental impacts. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Broch, Ole Jacob Pascal, Klebert Michelsen, Finn Are Alver, Morten |
spellingShingle |
Broch, Ole Jacob Pascal, Klebert Michelsen, Finn Are Alver, Morten Multiscale modelling of cage effects on the transport of effluents from open aquaculture systems |
author_facet |
Broch, Ole Jacob Pascal, Klebert Michelsen, Finn Are Alver, Morten |
author_sort |
Broch, Ole Jacob |
title |
Multiscale modelling of cage effects on the transport of effluents from open aquaculture systems |
title_short |
Multiscale modelling of cage effects on the transport of effluents from open aquaculture systems |
title_full |
Multiscale modelling of cage effects on the transport of effluents from open aquaculture systems |
title_fullStr |
Multiscale modelling of cage effects on the transport of effluents from open aquaculture systems |
title_full_unstemmed |
Multiscale modelling of cage effects on the transport of effluents from open aquaculture systems |
title_sort |
multiscale modelling of cage effects on the transport of effluents from open aquaculture systems |
publisher |
PLOS ONE |
publishDate |
2020 |
url |
https://hdl.handle.net/11250/2652800 https://doi.org/10.1371/journal.pone.0228502 |
genre |
Atlantic salmon |
genre_facet |
Atlantic salmon |
op_source |
15 PLOS ONE 3 |
op_relation |
SINTEF Ocean: RACE urn:issn:1932-6203 https://hdl.handle.net/11250/2652800 https://doi.org/10.1371/journal.pone.0228502 cristin:1806501 |
op_rights |
Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no © 2020 Broch et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1371/journal.pone.0228502 |
container_title |
PLOS ONE |
container_volume |
15 |
container_issue |
3 |
container_start_page |
e0228502 |
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1766362971476328448 |